2. Energy use has
changed a great deal
since people relied
solely on the sun,
their own strong
bodies or animals as
energy resources.
3. Long ago, people
learned how to use
water power to
turn paddle wheels
and wind power
for transportation
and irrigation.
4. People learned to
use the chemical
energy stored in
materials like
wood to cook and
heat their homes.
5. But machines and
technologies
introduced during
the Industrial
Revolution of the late
18th century required
the use of other
energy resources,
especially fossil fuels.
7. PROBLEMS CAUSED BY OVER
CONSUMPTION OF ENERGY
HEALTH
PROBLEMS
HIGHER GLOBAL
TEMPERATURES
DAMAGE TO
PLANTS
8. Other problems from the pollution from
burning fossil fuels:
Lead poisoning has been shown to affect the development
and progress of children living near motorways
Dust and gases in the air can lead to smog above large
industrialised cities
A hole is developing in the ozone layer which will not filter
out harmful ultra-violet rays from the Sun
9. What are the problems with global
warming?
The average
temperature of
the Earth will rise
This can lead to
droughts
11. Our fossil fuel
reserves formed over
millions of years from
decaying plants and
animals.
As we use them up,
they will not be
replenished in our
lifetimes.
12. HOW CAN WE HELP
UNPLUG ELECTRONIC
DEVICES
USE ENERGRY SAVING
LIGHT BULBS
TURN OFF LIGHTS
CLOSE THE FRIDGE
TURN OFF THE WATER
14. USE ENERGRY SAVING LIGHT BULBS
These last a
long time and
use much less
energy than
other light
bulbs.
15. TURN OFF LIGHTS
Turn off the lights
in your bedroom
when you leave.
Make sure you turn
off all the lights in
the house when you
out
Turn off the lights if
no one is in a room
16. CLOSE THE FRIDGE
Do not leave the
fridge door open
because the
things inside
warm up and
fridges use a lot of
energy to make
them cold again
17. TURN OFF THE WATER
Using simple water
conservation techniques
can help cut your water
usage by more than half. If
you commit just a little
extra effort each day you
alone can make a
difference
Turning off the water when
you are brush your teeth is
a great way to start
conserving energy